Record the accidental success and failure of uploading large files

Project situation ：
The website uses Microsoft cloud server 、 Load balancing （ Multi machine operation ）、 Microsoft cloud oss
The front end uses webuploader Upload plug-ins , The plug-in can only upload files successfully , To click the confirm button .

The wonderful situation encountered （webuploader Patch uploading ）：
1、 Upload small files , Show upload success , Click the confirm button to confirm that it is normal
2、 Larger files , According to successful , Sometimes it is normal to click the confirm button , Sometimes clicking a button doesn't respond

Later found as a result of ：
Load balancing distribution + Patch uploading Lead to accidental success and accidental failure , It's no problem to turn load balancing into single machine operation , Or it's no problem to upload and close the partition

Solution ：
1： Change load balancing rules , Do not automatically assign , Change to the upper limit and distribute it to another machine （ There may be problems at the critical point ）
2： Change the program directly to a separate file server （ Microsoft cloud oss）
3：